Window-lock



J'. A. ROUGH AND T. H. HAST'I E.

WINDOW LOCK.

APPLICATION FILED OCT. 12. 1920.

1,373,977, Patented Apr. 5, 1921.

ILA. ROLILGPI & T.H.Ha$ti.e

INVENTOR6 sat res star-as 7 JOHN exnouon AND Trier res n. nasrrn, orrensa, OKLAHOMA.

WINDOW-Loon." I i To all whom it may concern:

Be it known that we, JOHN A. ROUGH and THOMAS H. HAsrIn, citizens of theUnited States, residing at Tulsa, in the county of Tulsa and State ofOklahoma, have invented new and useful Improvements in Window-Locks, ofwhich the following is a specification.

This invention relates to locking devices for windows and has for itsobject the provision of a device adapted to be associated with the upperand lower sashes of a window whereby to lock the sashes at any desiredadjustment, either in closed or partially open position so that thewindow cannot be moved by a burglar or other unauthorized person on theoutside, the device being furthermore so constructed'that when inposition, with the sashes opening, if a sash should be closed orpartially closed the lock will automatically rengage so that the sashcannot again be opened until the device is released from the inside.

An important object is the provision of a device of this character whichis formed from a single piece of more or less resilient metal and whichwill therefore be extremely simple and inexpensive in manufacture aswell as easy to use, efficient in service, and a distinct improvement inthe art.

With the above and other objects and advantages in view, the inventionconsists in the details of construction to be hereinafter more fullydescribed and claimed, and illustrated in the accompanying drawings inwhich Figure 1 is a fragmentary front elevation of a pair of windowsashes showing the device in position, and

Fig. 2 is a longitudinal sectional view showing the device in sideelevation.

Referring more particularly to the drawings, the letter A designates aportion of a window casing, B designates the parting strip, C designatesthe lower rail of the upper sash, and D designates the upper rail of thelower sash.

In carrying out our invention we provide a device indicated broadly bythe numeral 10, formed from a single piece of sheet metal of a somewhatresilient nature. This sheet of metal is of elongated rectangular formand is bent intermediate its ends, as

Specification of Letters Patent.

Application filed October 12, 1920. SeriaI No. 416,417.

sl 1own at '11, into an acute angle to define diverging arms 12 and 13and the arm 13 is again bent, as indicated at 14, to define a projection15 disposed at a slightly acute angle with respect to the arm 13. Thearm 12 terminates in a sharpened point 16 and the projection 15 istapered, as shown.

Formed integrally upon one side edge of the sheet 10 is a lateralextension 17 which has one end formed with a penetrating tine 18.

In the use of the device it is so'placed that the arm 13 will bedisposed uponthe top of the sash rail D with the projection 15 engagingagainst the face of the rail toward the upper sash. The device is ofcourse placed at the extreme side of the sash rail D so that theextension 17 will overlie the parting strip B and the device is soarranged that the tine 18 will penetratingly engage the parting strip Band the point 16 penetratingly engage the side rail of the top sash, asclearly shown.

When the device is thus positioned it will be readily apparent that anyattempt to pull down the upper sash or raise the lower sash will befrustrated as the device will serve as a lock. Furthermore, it will bereadily apparent that the device cannot be reached and be dislodged by aperson outside of thewindow so that the device is consequently burglarproof.

From the foregoing description and a study of the drawings it will beapparent that we have thus provided a very simply constructed andinexpensive device which is easy to apply and which will efficientlyperform all thefunctions for which it is intended.

While we have shown and described the preferred embodiment of ourinvention, it is of course to be understood that we reserve the right tomake such changes in the form, construction, and arrangement of parts aswill not depart from the spirit of the invention or the scope of thesubjoined claim.

Having thus described our invention, we claim: 7 j

A device of the character described comprising an elongated sheet ofmetal bent into acute angular form to define diverging arms, one armbeing engageable upon the top rail of the lower sash of a window andterminating in a tapered extension engaging against the side of the railtoward the upper sash, the other arm terminating in a penetrating pointengageable with the side rail of the upper sash, and a lateral extensionformed on one side of said sheet and having its upper corner formed as apenetratingtine engageable with the parting strip of the window. V Y 10In testimony whereof we affix our signatures.

JOHNA. ROUGH.

THOMAS H. HASTIE.

